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Finding the Fourth Proportional to 450,927.09, 622,257.21 and 246,978.90

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Solution

The fourth proportional to 450,927.09, 622,257.21 and 246,978.90 is: 340,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,927.09 : 622,257.21 = 246,978.90 : x
  2. Step 2: Convert to fraction form
    450,927.09/622,257.21 = 246,978.90/x
  3. Step 3: Cross multiply
    450,927.09x = 622,257.21 × 246,978.90
  4. Step 4: Simplify right side
    450,927.09x = 153,684,401,242.87
  5. Step 5: Solve for x
    x = 153,684,401,242.87/450,927.09
  6. Step 6: Final answer
    x = 340,818.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.